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Lollipop Update [DISCUSSION] Viper4android

OP AndrasLOHF

26th November 2013, 01:19 PM   |  #1  
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Attached is the latest update zip. The zip will install Viper4Android in priv-app and remove DSP manager and MusicFX.

FAQ:

How do I install Viper???

Go into recovery and flash the zip. It will take care of most of the steps for you. Upon your first launch of the app you will be prompted to install drivers of your choosing then be prompted for a reboot. If coming from a previous version of Viper or you have any other sound mods I fully recommend uninstalling them. Then go into recovery and flash your ROM and the zip in one session.

How do I update the app???

Uninstall the drivers and the apk then go into recovery and flash the newest zip. If you update through the Viper app itself you will wind up with Viper in both priv-app and data app which may cause problems.

Well what drivers do I use???

I recommend Super Audio quality. It uses a higher sampling rate which can be thought of as like a megapixel on a camera. More sample information equals cleaner signal but your files must be equal to or better than the driver sampling rate. I find the highs to be much cleaner and have less distortion with Super Audio. While the prompt warns about extra battery usage, testing with Better Battery Stats for me has shown the effect on battery life to be minimal. You will get higher drain using the Convolver then by choosing a higher quality driver.

Well what is Convolver and how do I use it???

Convolver will play a real time sample of an effect or eq as the sound is being processed. You can get really awesome effects from some of the irs samples but they come at a high price of battery usage. Using this setting doubled battery life usage for me on even conservative kernel governors. To enable you must go to the menu and enable Moderate or Expert UI, then press the button to enable Convolver and press Impulse Response, this will create a ViPER4Android folder on your SD card and within that you will have a folder named Kernel. This is where you will put your Irs Samples you download. You can find links to Irs packs here: http://forum.xda-developers.com/show....php?t=2216193 PS......I've found that not all samples in all the packs work correctly and some will give no sound change.

HAAAAALP! This stoopit mod is killing my battery!!!

No it isn't. Unless you're using Convolver after being warned about it's effect on battery you should see little to no difference in daily use of getting notifications, texts, etc. I get about 6% an hour battery usage during music playback while streaming over bluetooth. If you're using a wired headset it should be less than that. I have never not even once seen Viper pop up on my stock battery stats and have only seen it as <1% on GSam after a full charge. Compatibility mode can be used as a last resort and final option if you're determined to call me a liar. Steps to enable it are outlined below.

Why put the app in priv-app???

This will help to insure that Viper doesn't get killed by Android OOM to keep the sweet sound pumping into your ears!!!

My Viper isn't working!!!

Did you install by flashing the zip??? Is your apk in priv-app??? Do you have any other conflicting sound mods or eq's??? Is Viper enabled and you have installed the drivers and done a reboot???

Some people have luck adding or changing these lines in their build.prop:
##Viper4android


lpa.decode=false
tunnel.decode=false
lpa.use-stagefright=false
lpa.releaselock=false

Also some music players work better by switching to Compatibility Mode. To do that go to menu, click FX Compatible Mode, then click Compatible. Doing this should cause Viper to only modify media players instead of changing sound system wide. Some users say this helps with battery usage as Viper will only process sound when you want it to.

Still stuck? There is tons of helpful information in this thread that you can find by helping yourself click that "Search this thread" function towards the top right of your screen. Still stuck after that....ask away!




Wanted to say thanks to @rootSU and @FlyinGrub for lending a helping hand, @FuMMoD for posting updates to the Viper apk and libs, and @davwman for getting this thread started. And of course the awesome Viper team for creating Viper. I refuse to run my phone without it!

Here is a link to the official thread for more information: http://forum.xda-developers.com/show....php?t=2191223


!!!!!!LOLLIPOP TIPS!!!!!!!! Right now with root being a mess here some tips to get yourself some Viper goodness on Lollipop. You need a full permissive kernel to get Viper working for now. To test your kernel open Google Play Music and play a track. If you get a "couldn't play stream requested message" you need to download this app https://play.google.com/store/apps/d....selinux&hl=en and set it to PERMISSIVE mode or find yourself a full permisssive kernel. After flashing the zip and installing your driver of choice you have two options to get this working well until Viper is updated. One is to turn Viper to Compatible Mode. The other is to leave Viper in Normal Mode and then go into Developer Options scroll to Use NuPlayer(experimental) and uncheck the box. If you don't do either of these two options you will get a horrid sound when audio stops. It could very well damage your ears or the equipment you are listening on. There are still some compatibility issues with some music players. We will all have to wait for the devs to catch up to android development to get a fix. Enjoy!!!!

Download goodies below.

Pre-LolliViPER also installs extra libs. They are removed on newer versions to resolve conflicts with Chromecast.
Attached Files
File Type: zip viper_v2.3.3.0.zip - [Click for QR Code] (6.58 MB, 14040 views)
File Type: zip viper_v2.3.2.6.zip - [Click for QR Code] (6.31 MB, 306 views)
File Type: zip viper_v2.3.2.2.zip - [Click for QR Code] (5.71 MB, 252 views)
File Type: zip LolliViPER_v2.3.3.0.zip - [Click for QR Code] (5.51 MB, 13094 views)
Last edited by AndrasLOHF; 17th November 2014 at 12:13 AM.
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26th November 2013, 01:24 PM   |  #2  
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Im using it since the start so i cant really comment on How it was before but the sound quality is awesome on my n5. Dunno but i guess The bass is a bit low so i Bad to raise it More than other EQs I've used.. I heard the KitKat DSP is pretty nice as well but as I said I can't comment on that😯

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26th November 2013, 01:51 PM   |  #3  
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Quote:
Originally Posted by davwman

Anyone using it on the awesome nexus 5? If so, any noticeable improvements? Which one to install? And any negative effects?

V4A works well on N5 BUT:
- I sometimes have interferences when listening to my podcast audio files. I need to make some tests to know if this is due to V4A or an audio mod.
- there's no more IRS options atm and this is a shame!
- I'm going to flash OmniROM (again) and I'll only use DSP app for a few days and see what happens.
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26th November 2013, 07:52 PM   |  #4  
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I won't run a phone without it!!!



Quote:
Originally Posted by Primokorn

V4A works well on N5 BUT:
- I sometimes have interferences when listening to my podcast audio files. I need to make some tests to know if this is due to V4A or an audio mod.
- there's no more IRS options atm and this is a shame!

Been running Convolver with IRS samples since Nov 9th. I did notice that some were taken down but there are still some out there.
26th November 2013, 08:24 PM   |  #5  
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which mode are you guys using? Battery saving, high q or super quality? Also, it says, that super quality may increase battery drain.. Dont you guys know how much it takes from battery? Thanks
26th November 2013, 09:32 PM   |  #6  
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I'm using it on high quality. I DO notice a difference. The sound was a lot flatter before V4A. It's much more robust with it.

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26th November 2013, 09:34 PM   |  #7  
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Super quality here. Battery usage during music is fantastic for me even streaming over bluetooth.
26th November 2013, 10:34 PM   |  #8  
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Super quality here. Purity Rom + Franco + PA Mini Gapps + Viper = rockin'
Not real noticeable on n5 speakers, but with good headphones it's night and day.... and my Klipsch s4's are not the best, but good enough for my listening. Some good profiles here.
26th November 2013, 11:11 PM   |  #9  
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What version do I download?
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26th November 2013, 11:34 PM   |  #10  
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FX version v2.3.1.3 (Android 2.3~4.4): Mediafire

Quote:
Originally Posted by davwman

What version do I download?


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